Name of the Speaker(s): Gustavo E. Romero
Institution: Instituto Argentino de Radioastronomia (Argentina)
Title of the communication: Search for Variability in Selected Southern Blazars
Preliminary abstract (12 lines max.): We present results in the search for variability in the southern extragalactic radio sources PKS 1610-77, Cen A, and PKS 1830-21. The first source has displayed large variations in its flux density over time scales of months overlapped with short-term flicker probably originated in refractive effects of the local ISM. Cen A and the gravitational lensed system PKS 1830-21 were studied at different temporal resolutions ranging from intraday to intermonth sampling. Results are discussed in their respective contexts.